CN217553989U - Trailer gooseneck electric steering structure - Google Patents

Abstract

The utility model discloses a trailer gooseneck electronic structure that turns to, including gooseneck and running gear, the gooseneck includes the towing pin, running gear includes the axle steering cylinder, turn to the structure still include with towing pin matched with gear drive and two respectively with gear drive and axle steering cylinder matched with stroke sensor, two the common electric connection of stroke sensor has a PLC controller. The utility model discloses when simplifying the structure, can satisfy the demand that a plurality of walking units are steady, turn to fast, follow-up can increase a plurality of walking units conveniently, simultaneously, greatly promoted the synchronism and the accurate nature that turn to.

Description

Trailer gooseneck electric steering structure

Technical Field

The utility model relates to a trailer technical field specifically moves say, relates to an electronic structure that turns to of trailer gooseneck.

Background

At present, gooseneck formula trailer is widely used for transporting in the goods that various length, weight, width, shape differ, and the longer gooseneck formula trailer of length is when transporting the long object of non-detachable, and turning radius is very big, is unfavorable for the vehicle to turn, and especially the throughput is not high when dealing with narrower road turns, and whole turning performance is general.

The Chinese patent publication No. CN 202806918U discloses a synchronous steering hydraulic heavy type transfinite transportation trailer, which comprises a power gooseneck, a loading platform and a traveling mechanism, wherein the front part of the power gooseneck is provided with a slewing bearing matched with a tractor saddle, the left side and the right side of the slewing bearing are respectively hinged with a left gooseneck steering cylinder and a right gooseneck steering cylinder, the traveling mechanism is formed by splicing a plurality of traveling units, each traveling unit comprises a left longitudinal beam and a right longitudinal beam, at least one group of axles are arranged below the left longitudinal beam and the right longitudinal beam, each group of axles comprises a left independent axle body and a right independent axle body, the axle bodies are arranged on the longitudinal beams through an adjustable suspension mechanism, the upper parts of the axle bodies are provided with steering arms, and the turning of the axle bodies on the same longitudinal beam

The steering arms are hinged into a whole through a driving connecting rod, a walking steering oil cylinder connected with the driving connecting rod is arranged at the front part and/or the tail part of the walking mechanism, and the gooseneck steering oil cylinder and the walking steering oil cylinder on the same side are arranged in parallel. ".

Although the gooseneck steering cylinder and the parallel cooperation of walking steering cylinder through the homonymy set up among this prior art, the turning performance has been promoted to a certain extent, the coordination that tractor and trailer axle turned to has been kept synchronous, but this prior art structure is complicated, and turn to for hydraulic pressure follow-up, because the restriction of gooseneck size, at most directly drive 2 walking units, if take more walking units, then need increase extra connecting rod and coupling mechanism, can't satisfy a plurality of walking units steadily, the demand that turns to fast, and simultaneously, this hydraulic pressure follow-up turns to's operation mode, its synchronism and the precision that turns to still have a shortage to some extent.

For this reason, a new technical solution is required to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electronic structure that turns to of trailer gooseneck to solve the current trailer gooseneck that provides in the above-mentioned background art and turn to the structure, its structure is complicated, and can't satisfy the demand that a plurality of walking units steady, turn to fast, the synchronism that turns to simultaneously and accurate nature still have the technical problem who lacks to some extent.

In order to achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a trailer gooseneck electric steering structure, includes gooseneck and running gear, the gooseneck includes the towing pin, the rotation angle of towing pin is-110 ~ 110 degrees, running gear is equipped with a set ofly at least, running gear includes the axle and turns to the hydro-cylinder, turn to the structure still include with towing pin matched with gear drive and two respectively with gear drive and axle turn to hydro-cylinder matched with stroke sensor, two the common electric connection of stroke sensor has a PLC controller.

Further, gear drive includes slewing bearing, the gooseneck still includes gooseneck frame, slewing bearing seat and with towing pin matched with towing pin fixing base, the PLC controller is installed on the gooseneck frame, slewing bearing includes relative pivoted bearing inner circle and bearing inner race, the bearing inner race sets up in the periphery of bearing inner circle, be equipped with steel ball and dust ring between bearing inner circle and the bearing inner race, towing pin fixing base fixed connection is in the below of bearing inner circle, bearing inner race fixed connection is in slewing bearing seat's inner wall side, slewing bearing seat fixed connection is on the gooseneck frame, the inner wall side of bearing inner circle has the transmission ring gear, transmission ring gear horizontal meshing has a driven gear, the stroke sensor includes stroke sensor I and stroke sensor II, driven gear rotatably connects in the below of stroke sensor I, II fixed mounting of stroke sensor are on the axle steering cylinder, driven gear include with the gear portion of transmission ring gear horizontal meshing gear portion and the perpendicular axis body portion of connecting in the top of integral type, the other end of axle body portion is connected with the stroke sensor.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in through the cooperation setting of towing pin and gear drive, rethread two stroke sensor respectively with the cooperation setting of gear drive and axle steering hydro-cylinder, set up through the electric connection of two stroke sensors and same PLC controller at last, make the rotation parameter information with tractor saddle complex towing pin, can pass through gear drive and the cooperation operation with gear drive matched with stroke sensor, transmit to the PLC controller, control the stroke sensor with axle steering hydro-cylinder matched with by the PLC controller again, control the stroke of axle steering hydro-cylinder, finally realize walking unit (trailer axle tire) turned angle's control, it is when simplifying the structure, can satisfy the steady, the demand that turns to fast of a plurality of walking units, follow-up can increase a plurality of walking units conveniently; meanwhile, the electric control through the PLC is matched, so that the synchronism and the accuracy of steering are greatly improved;

2. the driven gear in the utility model consists of a gear part horizontally meshed with the transmission gear ring and an integrated shaft part vertically connected above the gear part, the gear part is connected with the sensor through the shaft part, and the shaft part is suspended at the inner side of the bearing inner ring to be meshed with the transmission gear ring, so that the connection and installation are stable, the accuracy of the gear transmission mechanism for the feedback of the rotation angle of the traction pin is greatly improved, and the synchronism and accuracy of the steering of the gooseneck and the walking unit are further ensured;

3. the utility model provides a towing pin, towing pin fixing base, slewing bearing seat, stroke sensor I, driven gear and PLC controller equally divide and do not directly or indirectly install on the gooseneck frame, and stroke sensor II is installed on axle steering cylinder, and overall structure is compact reasonable, and manufacturing cost is lower, is suitable for the scale and popularizes and applies.

Drawings

FIG. 1 is a schematic view of the working principle of the present invention;

FIG. 2 is a schematic structural view of the gooseneck of the present invention;

FIG. 3 is a schematic cross-sectional view of the gooseneck of the present invention (the driven gear and the gear sensor I are omitted);

fig. 4 is a schematic structural view of the slewing bearing of the present invention;

fig. 5 is a schematic cross-sectional view of the slewing bearing of the present invention;

FIG. 6 is a top view of the connection structure of the driven gear and the stroke sensor I of the present invention;

FIG. 7 is a side view of the connecting structure of the driven gear and the stroke sensor I of the present invention;

in the figure: 1. the device comprises a traction pin, 2, a traction pin fixing seat, 3, a rotary bearing, 31, a bearing inner ring, 32, a transmission gear ring, 33, a bearing outer ring, 34, a steel ball, 35, a dust ring, 4, a stroke sensor I, 5, a driven gear, 51, a gear part, 52, a shaft body part, 6, a traction pin fixing seat, 7, a rotary bearing seat, 8, a gooseneck frame, 9, a PLC (programmable logic controller), 10, an axle steering oil cylinder, 11 and a stroke sensor II.

Detailed Description

The following examples are provided to further illustrate the invention and are not intended to limit its application.

Referring to fig. 1 to 7, an electric steering structure for a trailer gooseneck is shown, which includes a gooseneck, a PLC controller 9, and a traveling unit (where the number of the traveling unit is not limited, and may be increased arbitrarily), where the traveling unit includes an axle steering cylinder 10 (basic structures such as a cantilever, an axle body, wheels, and a driving link provided on an existing traveling unit are not specifically described herein, but should not be limited to the implementation of its function), the gooseneck includes a towing pin 1 (a rotation angle of the towing pin 1 is-110 degrees), a towing pin holder 2, a slewing bearing 3, a slewing bearing seat 7, and a gooseneck frame 8, where the towing pin 1 is configured to be mounted on a saddle of a tractor, the slewing bearing 3 is configured by a bearing inner ring 31, a bearing outer ring 33, and a steel ball 34 and a dust ring 35 disposed between the bearing inner ring 31 and the bearing outer ring 33, an inner wall side of the bearing inner ring 31 has a transmission gear ring 32, the towing pin 1 is bolted to a lower surface of the bearing inner ring 31 through the towing pin holder 2, the bearing inner ring 33 is rotatably fitted to an outer periphery of the bearing inner ring 31 through the steel ball 34, the bolt is fixed to an outer ring 33, and is also mounted on the bearing outer ring 33, and the bearing outer ring 8, and the gooseneck frame is also configured to control the gooseneck frame 8;

further, the transmission gear ring 32 horizontal meshing has a driven gear 5, driven gear 5 have with transmission gear ring 32 engaged with gear portion 51 and with the perpendicular axis body portion 52 of being connected of gear portion 51 integral type constitute, the other end of axis body portion 52 is connected with stroke sensor I4, installs stroke sensor II 11 on the axle steering cylinder 10, stroke sensor I4 and stroke sensor II 11 simultaneously with PLC controller 9 electric connection.

In operation, it is rotatory with tractor saddle linkage complex towing pin 1, it is rotatory to drive bearing inner race 31, and then it is rotatory to drive the transmission ring gear 32 of bearing inner race 31 inner wall side, horizontal meshing through transmission ring gear 32 and driven gear 5, give stroke sensor I4 with the turned angle parameter transmission of towing pin 1, stroke sensor I4 feeds back it to PLC controller 9 again, then by PLC controller 9 control stroke sensor II 11, the stroke of control axle steering cylinder 10, finally realize walking unit (trailer axle tire) turned angle's control, guarantee the synchronism and the precision that gooseneck and walking unit turned to, thereby further guarantee the synchronism and the precision that the walking unit of tractor and trailer turned to.

Claims (9)

1. The utility model provides a trailer gooseneck power-driven steering structure, includes gooseneck and running gear, the gooseneck includes the towing pin, running gear includes the axle steering cylinder, its characterized in that, the structure that turns to still include with towing pin matched with gear drive and two respectively with gear drive and axle steering cylinder matched with stroke sensor, two the common electric connection of stroke sensor has a PLC controller.

2. The electric steering structure for the gooseneck of the trailer according to claim 1, wherein the gear transmission mechanism comprises a slewing bearing, the slewing bearing comprises a bearing inner ring and a bearing outer ring which rotate relatively, the bearing outer ring is arranged on the outer periphery of the bearing inner ring, a transmission gear ring is arranged on the inner wall side of the bearing inner ring, and the transmission gear ring is horizontally meshed with a driven gear.

3. The trailer gooseneck electric steering structure as claimed in claim 2, wherein a steel ball and a dust ring are arranged between the bearing inner ring and the bearing outer ring.

4. The gooseneck power steering structure of a trailer according to claim 2, wherein the stroke sensor comprises a stroke sensor I and a stroke sensor II, the driven gear is rotatably connected below the stroke sensor I, and the stroke sensor II is fixedly mounted on the axle steering cylinder.

5. The gooseneck electric steering structure of the trailer as claimed in claim 4, wherein the driven gear comprises a gear portion horizontally meshed with the transmission gear ring and a shaft portion vertically connected above the gear portion in an integrated manner, and the other end of the shaft portion is connected with the stroke sensor I.

6. The trailer gooseneck electric steering structure of claim 4, wherein the gooseneck further comprises a gooseneck frame, a rotary bearing seat and a towing pin fixing seat matched with the towing pin, the towing pin fixing seat is fixedly connected below the bearing inner ring, the bearing outer ring is fixedly connected on the inner wall side of the rotary bearing seat, and the rotary bearing seat is fixedly connected on the gooseneck frame.

7. The trailer gooseneck power steering architecture of claim 6, wherein the PLC controller is mounted on the gooseneck frame.

8. The gooseneck power steering structure of a trailer as claimed in claim 1, wherein the angle of rotation of the kingpin is-110 to 110 degrees.

9. The gooseneck electric steering structure of a trailer as claimed in claim 1, wherein at least one group of travelling mechanisms is provided.

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